Fluid burning air heater



" C. L. GULLEY FLUID BURNING AIR HEATER June 17, 1958 2 Sheets-Sheet 1 Filed Sept. 21', 1955 INVENTOR. Charles L. @u/ley.

ATTORNEKS.

FLUID BURNING AIR HEATER Charles L. Gulley, Warrenshurg, Mo. Application September 21, 1955, Serial No. 535,658

1 Claim. (Cl. 126-90) This invention relates to a fluid burning heater and more particularly to a heater of that character which may burn gas or liquid fuel.

The present invention relates to a heater or stove which may be small and compact for individual room use, suspended from a ceiling in a work room, or may be utilized for furnaces in heating buildings or the like.

The principal objects of the present invention are to provide a heater having a casing or wall provided with a burner in the bottom thereof, and having a plurality of accordion shaped flue portions or channels supported on the bottom of the heater and extending to the top thereof whereby the flames from the burner may be combined with the air admitted through the bottom of the heater to provide the proper combustion of the gases or liquid burning fuel.

Other objects of the present invention are to provide slots or openings in the bottom of the furnace in relation to the V-shaped flue portions to allow for proper flow of the air to insure proper combustion of the fluid; to provide dampers over the openings in the bottom of the stove and means for opening and closing the dampers to regulate the supply of air to the stove in respect to the fuel supplied; to provide means for carrying the fumes from the burner to a stack; to provide inwardly tapered flue portions or flutes so that a larger space will be provided in the heater at the upper end thereof; to provide a cover for said wall with vents from the furnace proper and means for carrying the heated air therefrom to the space desired to be heated; and to provide a device of this character simple and economical to manufacture.

in accomplishing these and other objects of the invention I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings wherein:

Fig. 1 is a vertical cross-sectional view through the heater taken on a line 11, Fig. 6.

Fig. 2 is a vertical cross-sectional view taken on a line 2-2, Fig. 1.

Fig. 3 is an enlarged fragmentary view partly in cross section particularly illustrating the lower ends of the flue portions and the dampers for regulating the air to the heater.

Fig. 4 is a cross-sectional view taken on a line 4-4, Fig. 1.

Fig. 5 is a cross-sectional view taken on a line 5-5, Fig. 1.

Fig. 6 is a side view of the heater.

Referring more in detail to the drawings:

1 designates a heater or stove embodying the features of my invention comprising an outer wall 2 consisting of a front portion 3, back 4, and ends 5 and 6. The walls are supported by a plurality of legs 7 and a bottom 8 is provided with longitudinal openings or slots 9 and 10.

A burner 11 is provided which rests on the bottom 3 as illustrated in Fig. 2 and is here shown to be tubular ired States atent O 2,839,045 Patented June 17, 1958 in cross section extending entirely across the bottom although any shape may be utilized for my purpose. The burner is provided with parallel rows of perforations 12 and 13. A regulating valve 14 is provided in the end of the burner extending outwardly from the end 5 of the wall of the furnace which end is connected to a pipe 15 which leads to a source of supply (not shown).

A top of cover plate 16 is provided for the top of the furnace wall and has a substantially rectangular shaped opening 17 in which is secured by welding or other suitable means a housing 18 having a bottom 19 and side walls 20 and 21 spaced from the side walls of the furnace proper. The top has a dome-shaped cover 22 provided with an opening 23 for a smoke stack or the like 24. The housing 18 provides a chamber or compartment 25 for a purpose later described. The top 16 of the furnace is provided with a plurality of air vents 26 and 27 leading from the chamber 28 provided by the walls of the furnace proper. A hood or the like 29 is secured to the back wall 4 of the furnace by rivets or the like 30 (Fig. 2) and is curved forwardly as indicated at 31 and provided with an opening 32 through which the stack 24 extends to atmosphere.

. The burner 11 extends entirely across the bottom of the furnace and mounted on each side thereof are V- shaped or accordion shaped flue portions or flutes 33 and 34 which extend upwardly into the chamber 25 at the top of the heater and are tapered inwardly as best illustrated in Figs. 1 and 2 leaving the chamber 28 larger at the top of the heater than at the bottom as also illustrated in Fig. 2. The housing 18 has openings in the bottom 19 and the top edges 35 of the flue portions register with said openings. It will be noted the walls of the flue portions provide a plurality of spaces 36 and 37 on the inside thereof on each side of the burner and the openings or perforations 12 and 13 are directed toward the spaces so that the flame from the burner will be directed into the spaces and the heat therefrom will rise in the heater through the flue portions. Any fumes from the burner will be dissipated through the chamber 25 and then through the stack 24 to the atmosphere.

It will be noted (Fig. 3) that the flue portions or flutes 36 and 37 extend over the openings 9 and 13 in the bottom of the heater and dampers 33 and 38 are pivotally mounted by trunnions 39 and 40 in the respective corner legs of the furnace also as illustrated in Fig. 3. The end edges 41 and 42 of the dampers are provided with trunnions 43 and 44 for pivotally mounting the ends of arms 45 and 46 having their opposite ends pivotally mounted on outwardly extending pins 47 and 48 rigidly mounted on the valve 14 of the burner. A handle 49 is mounted on the stem 50 of the valve for regulating the flow of fuel to the burner by operating the valve and at the same time the dampers may be moved to and from the openings 9 and 10 through arms 45 and 46 to regulate the air to the heater according to the amount of fuel fed to the burner. The bottoms of the flue portions may be secured to the bottom of the heater by welding or other suitable means as desired. They are also secured to the bottom 19 of the housing 18 in a similar manner.

When the burner is in operation the air entering through the openings 9 and 10 enters the spaces 36 and 37 next to the flame and will first be heated and the air near the outside of the furnace or in the spaces 36 and 37 will be heated through the walls of the flue portions and the hot gases emanating from the burner will be carried along the plurality of flue portions to the chamber 25 of the furnace thus heating the flue portions and outer Walls thereof and the hot gases will flow from one space to the next through the space between the respective flue portions 33 and 34 provided above the ice 'wall of the furnace.

bu e 11- The al s at the 111; portion wt lla sp heated and the heated air will emanate therefrom to the chamber 28 and thence to the walls of the heater. The heated air of course rises in the chamber 28 and will be dissipated through the louvered openings 2 6 and 27 in the .top .of the heater and then be directed outwardly by the hood 29 to the room or space desired to be heated.

In Fig. 6 -I have illustrated a sliding door 51 to cover an opening in the end wall of the heater to provide access to the burner. This door may be moved up and down in the grooves ofbrackets 52 and 53 secured to the end The lower edge of the door is formed to fit theburner as best illustrated'in Fig. 6. A

damper (not shown) may be provided for the stack 24 if desired.

-I do not wish to be limited to any form or shape of furnace as any suitable shape may be utilized-and the forms here shown are merely by way of illustrations.

It will be obvious from the foregoing that '1 have provided an improved heater whereby'the air may be combined in the bottom of the furnace with the burner flame to form a combustion of the gases and carry the heat through the flue portions as described.

What I claim and desire to secure by Letters Patent is:

' A heater of the character described comprising, a

said bottom on each side of the burnensaid flue portions defining spaces between the walls thereof and align.

ing with the perforations in the burner so that the hot gases from the burner will be directed thereinto, said flue portions being tapered upwardly from bottom to top defining a larger heating space therearound at the top of the casing, said top of the casing having an opening therein, a housing secured in said opening and having downwardly and inwardly tapered side walls, each of said last named sidewalls havingopenings arranged in a longitudinal row, the upperends of said flue portions being secured in said last named openings and said housing forming a chamber, said chamber having a vent for carrying ofi fumes from said burner, the top of said housing having vents through which heated air from the heating chamber will flow, legs for said casing providing a space underneath thereof, dampers pivotally mounted on said legs and covering said openings in the bottom or" the casing a' fuel supply connection to said burner including a valve, and means connecting said valve with said dampers whereby regulation of said valve will regulate flow of air to said heating chamber through said openings in the bottom of the casing.

References Cited in. the file of this patent UNITED STATES PATENTS Morley et a1. Dec. '7, 

